锻压技术

铝合金型材分流模挤压过程焊合行为的研究进展

英文标题：Research progress on welding behavior during porthole die extrusion process for aluminum alloy profile

作者：赵国群陈良喻俊荃

单位：山东大学

分类号：TG379

出版年,卷(期):页码：2018,43(7):49-55

摘要：

空心铝合金型材分流模挤压过程中，不可避免地会在整个型材长度上形成若干条纵向焊缝，焊合质量的优劣对型材的整体力学性能影响很大。综述了铝合金型材分流焊合行为及其机理的研究进展，介绍了焊合室、分流孔、分流桥、工作带等模具结构和挤压速度、棒料温度等工艺参数对焊合质量的影响规律，总结分析了现有K准则、Q准则、J准则及其对焊合质量的预测方法，阐述了铝合金分流焊合机理及其微观组织演变规律。最后，展望了铝合金型材分流焊合挤压过程的研究方向，指出应在复杂大断面铝合金型材焊合质量控制、铝锂合金挤压过程焊合行为等方面加强相关研究。

During porthole die extrusion process of hollow aluminum alloy profile, several longitudinal weld seams are inevitably formed along the whole length of profile, and the welding quality has significant influence on the overall mechanical properties of profile. Therefore, the research progress on welding behavior of aluminum alloy profile extruded by porthole die and its mechanism were reviewed, and the influences of die structure such as welding chamber, porthole, bridge and bearing, and process parameters such as extrusion speed and billet temperature on the welding quality were introduced. Then, the current K criteria, Q criteria, J criteria and welding quality prediction method were summarized and analyzed, and the welding mechanism of aluminum alloy profile extruded by porthole die and microstructure evolution rules were expounded. Finally, the future research direction about the welding behavior for aluminum alloy profile extruded by porthole die was discussed, and it was pointed out that the control of welding quality for large scale and complex cross-section aluminum alloy profile and the welding behavior of alloy Al-Li during the extrusion process should be comprehensively studied.

基金项目：

国家自然科学基金资助项目（51735008，U1708251）

赵国群（1962-），男，博士，教授，E-mail：zhaogq@sdu.edu.cn

参考文献：

[1]梁继业，邓钢，方斌. L型截面铝型材拉弯成形截面畸变缺陷控制研究[J]. 锻压技术，2016，41(12)：42-45.

Liang J Y, Deng G, Fang B. Section distortion control for Lsection aluminum profile part in the stretchbending process[J]. Forging & Stamping Technology, 2016, 41(12): 42-45.

[2]王震虎，何芯，李落星. 铝合金空心型材挤压截面内凹变形有限元分析及模具结构优化设计[J]. 锻压技术，2017，42(11)：73-78.

Wang Z H, He X, Li L X. FE analysis and die structure optimization design on concave distortion of extrusion section for aluminum alloy hollow profile[J]. Forging & Stamping Technology, 2017, 42(11): 73-78.

[3]冯迪，张新明，孙峰，等. 铝合金空心型材挤压焊合问题的研究进展[J]. 材料导报，2013，27(10)：6-9.

Feng D, Zhang X M, Sun F, et al. Research and progress in weld seams of aluminum alloy hollow profile extrusion[J]. Materials Review, 2013, 27(10): 6-9.

[4]Yu J Q, Zhao G Q, Chen L. Analysis of longitudinal weld seam defects and investigation of solidstate bonding criteria in porthole die extrusion process of aluminum alloy profiles[J]. Journal of Materials Processing Technology, 2016, 237: 31-47.

[5]Donati L, Tomesani L. The effect of die design on the production and seam weld quality of extruded aluminum profiles[J]. Journal of Materials Processing Technology, 2005, 164-165: 1025-1031.

[6]Donati L, Tomesani L, Minak G. Characterization of seam weld quality in AA6082 extruded profiles[J]. Journal of Materials Processing Technology, 2007, 191(1-3): 127-131.

[7]Valberg H, Loeken T, Hval M, et al. The extrusion of hollow profiles with a gas pocket behind the bridge[J]. International Journal of Materials and Product Technology, 1995, 10 (3-6): 222-267.

[8]Valberg H. Extrusion welding in aluminium extrusion[J]. International Journal of Materials and Product Technology, 2002, 17(7): 497-556.

[9]Sun X M, Zhao G Q, Zhang C S, et al. Optimal design of secondstep welding chamber for a condenser tube extrusion die based on the response surface method and the genetic algorithm[J]. Materials and Manufacturing Processes, 2013, 28(7): 823-834.

[10]Lee J M, Kim B M, Kang C G. Effects of chamber shapes of porthole die on elastic deformation and extrusion process in condenser tube extrusion[J]. Materials & Design, 2005, 26(4): 327-336.

[11]Hsu Q C, Chen Y L, Lee T H. Nonsymmetric hollow extrusion of high strength 7075 aluminum alloy[J]. Procedia Engineering, 2014, 81: 622-627.

[12]曾文浩，魏刚，邓小亮，等. 焊合角和焊合室深度对复杂悬臂空心铝型材挤压成形质量的影响[J]. 锻压技术，2017，42(6)：92-100.

Zeng W H, Wei G, Deng X L, et al. Influences of welding angle and welding chamber depth on the extrusion quality of hollow aluminum profile with complex cantilever[J]. Forging & Stamping Technology, 2017, 42(6): 92-100.

[13]Yu J Q, Zhao G Q, Chen L. Investigation of interface evolution, microstructure and mechanical properties of solidstate bonding seams in hot extrusion process of aluminum alloy profiles[J]. Journal of Materials Processing Technology, 2016, 230(1): 153-166.

[14]Chen L, Zhao G Q, Yu J Q, et al. Evaluation of a pyramid die extrusion for a hollow aluminum profile using FE simulation[J]. Journal of Mechanical Science and Technology, 2015, 29(5): 2195-2203.

[15]Gagliardi F, Ambrogio G, Filice L. On the die design in AA6082 porthole extrusion[J]. CIRP Annals-Manufacturing Technology, 2012, 61(1): 231-234.

[16]Gagliardi F, Schwane M, Citrea T, et al. Bridge design influences on the pressure conditions in the welding chamber for porthole die extrusion[J]. Key Engineering Materials, 2014, 622-623: 87-94.

[17]Khan Y, Valberg H, Jacobsen B T. Deformation conditions in the extrusion weld zone when using pointed and square ended bridge[J]. International Journal of Material Forming, 2010, 3(1): 379-382.

[18]Kim K, Lee C, Yang D. Investigation into the improvement of welding strength in threedimensional extrusion of tubes using porthole dies[J]. Journal of Materials Processing Technology, 2002, 130-131: 426-431.

[19]Zhang C S, Zhao G Q, Chen Z R, et al. Effect of extrusion stem speed on extrusion process for a hollow aluminum profile[J]. Materials Science and Engineering B, 2012, 177(19): 1691-1697.

[20]Jo H H, Lee S K, Jung C S, et al. A nonsteady state FE analysis of Al tubes hot extrusion by a porthole die[J]. Journal of Materials Processing Technology, 2006, 173(2): 223-231.

[21]Yu J Q, Zhao G Q, Cui W C, et al. Microstructural evolution and mechanical properties of welding seams in aluminum alloy profiles extruded by a porthole die under different billet heating temperatures and extrusion speeds[J]. Journal of Materials Processing Technology, 2017, 247: 214-222.

[22]Gagliardi F, Citrea T, Ambrogio G, et al. Influence of the process setup on the microstructure and mechanical properties evolution in porthole die extrusion[J]. Materials & Design, 2014, 60(8): 274-281.

[23]Chen L, Zhao G Q, Yu J Q. Effects of ram velocity on pyramid die extrusion of hollow aluminum profile[J]. International Journal of Advanced Manufacturing Technology, 2015, 79(9-12): 2117-2125.

[24]Liu J, Lin G Y, Feng D, et al. Effects of process parameters and die geometry on longitudinal welds quality in aluminum porthole die extrusion process[J]. Journal of Central South University of Technology, 2010, 17(4): 688-696.

[25]Akeret R. Properties of pressure welds in extruded aluminium alloy sections[J]. Journal of the Institute of Metals, 1972, 10: 202-208.

[26]Plata M, Piwnik J. Theoretical and experimental analysis of seam weld formation in hot extrusion of aluminum alloys[J]. Proceedings of International Aluminum Extrusion Technology Seminar, 2000, 1: 205-212.

[27]Donati L, Tomesani L. The prediction of seam welds quality in aluminum extrusion[J]. Journal of Materials Processing Technology, 2004, 153-154: 366-373.

[28]Ceretti E, Fratini L, Gagliardi F, et al. A new approach to study material bonding in extrusion porthole dies[J]. CIRP Annals-Manufacturing Technology, 2009, 58(1): 259-262.

[29]Tang D, Zhang Q, Li D, et al. A physical simulation of longitudinal seam welding in micro channel tube extrusion[J]. Journal of Materials Processing Technology, 2014, 214(11): 2777-2783.

[30]Güley V, Güzel A, Jger A, et al. Effect of die design on the welding quality during solid state recycling of AA6060 chips by hot extrusion[J]. Materials Science and Engineering A, 2013, 574(4): 163-175.

[31]Chen G J, Chen L, Zhao G Q, et al. Investigation on longitudinal weld seams during porthole die extrusion process of high strength 7075 aluminum alloy[J]. International Journal of Advanced Manufacturing Technology, 2017, 91(5-8):1897-1907.

[32]Buffa G, Campanella D, Pellegrino S, et al. Weld quality prediction in linear friction welding of AA6082-T6 through an integrated numerical tool[J]. Journal of Materials Processing Technology, 2016, 231: 389-396.

[33]Lakshminarayanan A K, Balasubramanian V. Comparison of RSM with ANN in predicting tensile strength of friction stir welded AA7039 aluminium alloy joints[J]. Transactions of Nonferrous Metals Society of China, 2009, 19(1): 9-18.

[34]Chen G, Shi Q, Li Y, et al. Experimental investigations on the kinetics of void shrinkage in solid state bonding of AA6061 at high temperatures and high pressures[J]. Materials & Design, 2016, 89: 1223-1226.

[35]Chen G, Feng Z, Chen J, et al. Analytical approach for describing the collapse of surface asperities under compressive stress during rapid solid state bonding[J]. Scripta Materialia, 2017, 128: 41-44.

[36]Cooper D R, Allwood J M. The influence of deformation conditions in solidstate aluminium welding processes on the resulting weld strength[J]. Journal of Materials Processing Technology, 2014, 214(11): 2576-2592.

[37]Cooper D R, Allwood J M. Influence of diffusion mechanisms in aluminium solidstate welding processes[J]. Procedia Engineering, 2014, 81: 2147-2152.

[38]Valberg H. Extrusion welding in porthole die extrusion[J]. Proceedings of International Aluminum Extrusion Technology Seminar, 1996, 2: 213-224.

[39]Valberg H, Malvik T. An experimental investigation of the material flow inside the bearing channel in aluminium extrusion[J]. International Journal of Materials and Product Technology, 1994, 9(4-5): 428-463.

[40]Bay N. Mechanisms producing metallic bonds in cold welding[J]. Welding Research Supplement, 1983, 62: 137-142.

[41]Den Bakker A, Werkhoven R, Sillekens W, et al. The origin of weld seam defects related to metal flow in the hot extrusion of aluminium alloys EN AW-6060 and EN AW-6082[J]. Journal of Materials Processing Technology, 2014, 214(11): 2349-2358.

[42]Oosterkamp A, Oosterkamp L D, Nordeide A. Kissing bond phenomena in solidstate welds of aluminum alloys[J]. Welding Journal-New York, 2004, 83(8): 225-231.

[43]Chen G J, Chen L, Zhao G Q, et al. Microstructure evolution during solution treatment of extruded AlZnMg profile containing a longitudinal weld seam[J]. Journal of Alloys and Compounds, 2017, 729: 210-221.

[44]Chen G J, Chen L, Zhao G Q, et al. Microstructure analysis of an AlZnMg alloy during porthole die extrusion based on modeling of constitutive equation and dynamic recrystallization[J]. Journal of Alloys and Compounds, 2017, 710: 80-91.

[45]Yu J Q, Zhao G Q, Zhang C S, et al. Dynamic evolution of grain structure and microtexture along a welding path of aluminum alloy profiles extruded by porthole dies[J]. Materials Science & Engineering A, 2017, 682: 679-690.

[46]Fan X H, Tang D, Fang W L, et al. Microstructure development and texture evolution of aluminum multiport extrusion tube during the porthole die extrusion[J]. Materials Characterization, 2016, 118: 468-480.

[47]Bingl S, Keskin M. Effect of different extrusion temperature and speed on extrusion welds[J]. Journal of Achievements in Materials and Manufacturing Engineering, 2007, 23(2): 39-43.

[48]Zhao Y, Song B, Pei J, et al. Effect of deformation speed on the microstructure and mechanical properties of AA6063 during continuous extrusion process[J]. Journal of Materials Processing Technology, 2013, 213(11): 1855-1863.

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